A novel centrifugal miniature pump and its medical application

Author

Hainan, Cai ; Zhaoying, Zhou ; Yong, Li ; Xiongying, Ye ; Yihua, Yang

Author_Institution

Dept. of Precision Instrum., Tsinghua Univ., Beijing, China

fYear

1997

fDate

1997

Firstpage

115

Lastpage

117

Abstract

A miniature pump based on a high precision machining technique is described. The working principle of the pump is centrifugal. The blades of the pump are driven by a micromotor to rotate at very high speed, so the fluids from the axial direction of the pump are thrown out to the tangential direction of the pump. The available back pressure of the pump is 0 to 10 kPa (1 mH₂O). Its highest flow rate is relatively very large, so by using throttle tubes of different length and different inner diameter, variable flow rates of less than 1 μl/min and up to 100 ml/min can be achieved easily. It is of very useful in medical and other applications

Keywords

drug delivery systems; electrohydraulic control equipment; flow control; microfluidics; micromachining; micromotors; micropumps; 0 to 10 kPa; axial direction; centrifugal miniature pump; fluidics control system; high precision machining; injection pump; low cost; medical application; micromotor driven blades; tangential direction; throttle tubes; variable flow rates; Back; Biomedical equipment; Blades; Control systems; Fluid flow control; Fluidics; Medical services; Pressure control; Pumps; Size control;

fLanguage

English

Publisher

ieee

Conference_Titel

Micromechatronics and Human Science, 1997. Proceedings of the 1997 International Symposium on

Conference_Location

Nagoya

Print_ISBN

0-7803-4171-6

Type

conf

DOI

10.1109/MHS.1997.768867

Filename

768867